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    Amendment: SEC Form SCHEDULE 13G/A filed by C3is Inc.

    9/29/25 5:02:40 PM ET
    $CISS
    Marine Transportation
    Consumer Discretionary
    Get the next $CISS alert in real time by email



    SECURITIES AND EXCHANGE COMMISSION
    Washington, D.C. 20549


    SCHEDULE 13G


    UNDER THE SECURITIES EXCHANGE ACT OF 1934
    (Amendment No. 1)


    C3is Inc.

    (Name of Issuer)


    Common Stock, par value $0.01 per share

    (Title of Class of Securities)


    BBG01GSFY8Z6

    (CUSIP Number)


    09/19/2025

    (Date of Event Which Requires Filing of this Statement)


    Check the appropriate box to designate the rule pursuant to which this Schedule is filed:
    Checkbox not checked   Rule 13d-1(b)
    Checkbox checked   Rule 13d-1(c)
    Checkbox not checked   Rule 13d-1(d)






    SCHEDULE 13G

    CUSIP No.
    BBG01GSFY8Z6


    1Names of Reporting Persons

    WEXFORD CAPITAL LP
    2Check the appropriate box if a member of a Group (see instructions)

    Checkbox not checked  (a)
    Checkbox not checked  (b)
    3Sec Use Only
    4Citizenship or Place of Organization

    DELAWARE
    Number of Shares Beneficially Owned by Each Reporting Person With:
    5Sole Voting Power

    0.00
    6Shared Voting Power

    112,014.00
    7Sole Dispositive Power

    0.00
    8Shared Dispositive Power

    112,014.00
    9Aggregate Amount Beneficially Owned by Each Reporting Person

    112,014.00
    10Check box if the aggregate amount in row (9) excludes certain shares (See Instructions)

    Checkbox not checked
    11Percent of class represented by amount in row (9)

    7.02 %
    12Type of Reporting Person (See Instructions)

    PN

    Comment for Type of Reporting Person:  Ownership as of September 26, 2025. See Item 4(b) for additional details.


    SCHEDULE 13G

    CUSIP No.
    BBG01GSFY8Z6


    1Names of Reporting Persons

    Wexford GP LLC
    2Check the appropriate box if a member of a Group (see instructions)

    Checkbox not checked  (a)
    Checkbox not checked  (b)
    3Sec Use Only
    4Citizenship or Place of Organization

    DELAWARE
    Number of Shares Beneficially Owned by Each Reporting Person With:
    5Sole Voting Power

    0.00
    6Shared Voting Power

    112,014.00
    7Sole Dispositive Power

    0.00
    8Shared Dispositive Power

    112,014.00
    9Aggregate Amount Beneficially Owned by Each Reporting Person

    112,014.00
    10Check box if the aggregate amount in row (9) excludes certain shares (See Instructions)

    Checkbox not checked
    11Percent of class represented by amount in row (9)

    7.02 %
    12Type of Reporting Person (See Instructions)

    OO

    Comment for Type of Reporting Person:  Ownership as of September 26, 2025. See Item 4(b) for additional details.


    SCHEDULE 13G

    CUSIP No.
    BBG01GSFY8Z6


    1Names of Reporting Persons

    Charles Davidson
    2Check the appropriate box if a member of a Group (see instructions)

    Checkbox not checked  (a)
    Checkbox not checked  (b)
    3Sec Use Only
    4Citizenship or Place of Organization

    UNITED STATES
    Number of Shares Beneficially Owned by Each Reporting Person With:
    5Sole Voting Power

    0.00
    6Shared Voting Power

    112,014.00
    7Sole Dispositive Power

    0.00
    8Shared Dispositive Power

    112,014.00
    9Aggregate Amount Beneficially Owned by Each Reporting Person

    112,014.00
    10Check box if the aggregate amount in row (9) excludes certain shares (See Instructions)

    Checkbox not checked
    11Percent of class represented by amount in row (9)

    7.02 %
    12Type of Reporting Person (See Instructions)

    IN

    Comment for Type of Reporting Person:  Ownership as of September 26, 2025. See Item 4(b) for additional details.


    SCHEDULE 13G

    CUSIP No.
    BBG01GSFY8Z6


    1Names of Reporting Persons

    Joseph Jacobs
    2Check the appropriate box if a member of a Group (see instructions)

    Checkbox not checked  (a)
    Checkbox not checked  (b)
    3Sec Use Only
    4Citizenship or Place of Organization

    UNITED STATES
    Number of Shares Beneficially Owned by Each Reporting Person With:
    5Sole Voting Power

    0.00
    6Shared Voting Power

    112,014.00
    7Sole Dispositive Power

    0.00
    8Shared Dispositive Power

    112,014.00
    9Aggregate Amount Beneficially Owned by Each Reporting Person

    112,014.00
    10Check box if the aggregate amount in row (9) excludes certain shares (See Instructions)

    Checkbox not checked
    11Percent of class represented by amount in row (9)

    7.02 %
    12Type of Reporting Person (See Instructions)

    IN

    Comment for Type of Reporting Person:  Ownership as of September 26, 2025. See Item 4(b) for additional details.


    SCHEDULE 13G

    Item 1. 
    (a)Name of issuer:

    C3is Inc.
    (b)Address of issuer's principal executive offices:

    331 Kifissias Avenue, Kifissia, Athens, Greece, 14561
    Item 2. 
    (a)Name of person filing:

    Wexford Capital LP, Wexford GP LLC, Charles E. Davidson and Joseph M. Jacobs (collectively, the "Reporting Persons") are hereby jointly filing this Amendment No. 1 (the "Amendment") to the Schedule 13G filed on September 24, 2025 because such Reporting Persons may be deemed to beneficially own the securities named in Item 1 held by certain Wexford Funds (as defined below) due to certain affiliations among the Reporting Persons. This Amendment reflects new information provided by the Issuer to Wexford Capital LP with respect to its outstanding shares of Common Stock. See Item 4(b) for additional details.
    (b)Address or principal business office or, if none, residence:

    The address of the principal business office of the Reporting Persons is c/o Wexford Capital LP, 777 South Flagler Drive, Suite 602 East, West Palm Beach, FL 33401.
    (c)Citizenship:

    Each of Wexford Capital LP and Wexford GP LLC are formed in Delaware. Each of Charles E. Davidson and Joseph M. Jacobs are United States citizens.
    (d)Title of class of securities:

    Common Stock, par value $0.01 per share
    (e)CUSIP No.:

    BBG01GSFY8Z6
    Item 3.If this statement is filed pursuant to §§ 240.13d-1(b) or 240.13d-2(b) or (c), check whether the person filing is a:
    (a)Checkbox not checked   Broker or dealer registered under section 15 of the Act (15 U.S.C. 78o);
    (b)Checkbox not checked   Bank as defined in section 3(a)(6) of the Act (15 U.S.C. 78c);
    (c)Checkbox not checked   Insurance company as defined in section 3(a)(19) of the Act (15 U.S.C. 78c);
    (d)Checkbox not checked   Investment company registered under section 8 of the Investment Company Act of 1940 (15 U.S.C. 80a-8);
    (e)Checkbox not checked   An investment adviser in accordance with § 240.13d-1(b)(1)(ii)(E);
    (f)Checkbox not checked   An employee benefit plan or endowment fund in accordance with § 240.13d-1(b)(1)(ii)(F);
    (g)Checkbox not checked   A parent holding company or control person in accordance with § 240.13d-1(b)(1)(ii)(G);
    (h)Checkbox not checked   A savings associations as defined in Section 3(b) of the Federal Deposit Insurance Act (12 U.S.C. 1813);
    (i)Checkbox not checked   A church plan that is excluded from the definition of an investment company under section 3(c)(14) of the Investment Company Act of 1940 (15 U.S.C. 80a-3);
    (j)Checkbox not checked   A non-U.S. institution in accordance with § 240.13d-1(b)(1)(ii)(J). If filing as a non-U.S. institution in accordance with § 240.13d-1(b)(1)(ii)(J),
           please specify the type of institution:
    (k)Checkbox not checked   Group, in accordance with Rule 240.13d-1(b)(1)(ii)(K).
     
    Item 4.Ownership
    (a)Amount beneficially owned:

    The information required by Item 4(a) is set forth in Row 9 of the cover page for each of the Reporting Persons and is incorporated herein by reference, and reflects the ownership of the Reporting Persons on September 26, 2025. See Item 4(b) for additional details. Wexford Capital LP ("Wexford Capital") may, by reason of its status as (i) sub-advisor of each of Wexford Spectrum Trading Limited ("WST") and Wexford Catalyst Trading Limited ("WCT") and (ii) investment manager of Wexford Focused Trading Limited ("WFT", and together with WST and WCT, the "Wexford Funds"), be deemed to own beneficially the securities held by the Wexford Funds. Wexford GP LLC ("Wexford GP") may, as the General Partner of Wexford Capital, be deemed to own beneficially the securities held by the Wexford Funds. Each of Charles E. Davidson ("Davidson") and Joseph M. Jacobs ("Jacobs") may, by reason of his status as a controlling person of Wexford GP, be deemed to own beneficially the securities held by the Wexford Funds. Each of Wexford Capital, Wexford GP, Davidson and Jacobs share the power to vote and to dispose of the securities beneficially owned by the Wexford Funds. Each of Wexford Capital, Wexford GP, Davidson and Jacobs disclaim beneficial ownership of the securities held by the Wexford Funds and this report shall not be deemed as an admission that they are the beneficial owners of such securities except, in the case of Davidson and Jacobs, to the extent of their respective pecuniary interests therein.
    (b)Percent of class:

    The information required by Item 4(b) is set forth in Row 11 of the cover page for each of the Reporting Persons and is incorporated herein by reference. The information in Row 11 is calculated on the basis of 1,596,407 shares of Common Stock issued and outstanding, as reported by the Issuer directly to Wexford Capital on September 26, 2025, and reflects the ownership of the Reporting Persons on such date. As of the date of event that required the filing of this Schedule 13G, the Reporting Persons may have been deemed to beneficially own more than 5% of the outstanding shares of Common Stock.
    (c)Number of shares as to which the person has:
     (i) Sole power to vote or to direct the vote:

    The information required by Item 4(c)(i) is set forth in Row 5 of the cover page for each of the Reporting Persons and is incorporated herein by reference.

     (ii) Shared power to vote or to direct the vote:

    The information required by Item 4(c)(ii) is set forth in Row 6 of the cover page for each of the Reporting Persons and is incorporated herein by reference.

     (iii) Sole power to dispose or to direct the disposition of:

    The information required by Item 4(c)(iii) is set forth in Row 7 of the cover page for each of the Reporting Persons and is incorporated herein by reference.

     (iv) Shared power to dispose or to direct the disposition of:

    The information required by Item 4(c)(iv) is set forth in Row 8 of the cover page for each of the Reporting Persons and is incorporated herein by reference.

    Item 5.Ownership of 5 Percent or Less of a Class.
     
    Item 6.Ownership of more than 5 Percent on Behalf of Another Person.
     
    If any other person is known to have the right to receive or the power to direct the receipt of dividends from, or the proceeds from the sale of, such securities, a statement to that effect should be included in response to this item and, if such interest relates to more than 5 percent of the class, such person should be identified. A listing of the shareholders of an investment company registered under the Investment Company Act of 1940 or the beneficiaries of employee benefit plan, pension fund or endowment fund is not required.


    The Wexford Funds have the right to receive or the power to direct the receipt of dividends from, or the proceeds from the sale of, the shares of Common Stock reported herein.
    Item 7.Identification and Classification of the Subsidiary Which Acquired the Security Being Reported on by the Parent Holding Company or Control Person.
     
    Not Applicable
    Item 8.Identification and Classification of Members of the Group.
     
    Not Applicable
    Item 9.Notice of Dissolution of Group.
     
    Not Applicable

    Item 10.Certifications:
     
    By signing below I certify that, to the best of my knowledge and belief, the securities referred to above were not acquired and are not held for the purpose of or with the effect of changing or influencing the control of the issuer of the securities and were not acquired and are not held in connection with or as a participant in any transaction having that purpose or effect, other than activities solely in connection with a nomination under ?? 240.14a-11.

        SIGNATURE 
     
    After reasonable inquiry and to the best of my knowledge and belief, I certify that the information set forth in this statement is true, complete and correct.

     
    WEXFORD CAPITAL LP
     
    Signature:/s/ Mark E. Ahern
    Name/Title:By: Wexford GP LLC, its General Partner, By: Mark E. Ahern, Vice President and Assistant Secretary
    Date:09/29/2025
     
    Wexford GP LLC
     
    Signature:/s/ Mark E. Ahern
    Name/Title:Wexford GP LLC, By: Mark E. Ahern, Vice President and Assistant Secretary
    Date:09/29/2025
     
    Charles Davidson
     
    Signature:/s/ Charles E. Davidson
    Name/Title:Charles E. Davidson
    Date:09/29/2025
     
    Joseph Jacobs
     
    Signature:/s/ Joseph M. Jacobs
    Name/Title:Joseph M. Jacobs
    Date:09/29/2025
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